The "Fast and Furious" star was killed in a car crash Nov. 30 at age 40. Since then, 25-year-old Cody Walker has helped complete his brother's role in the latest "Furious" feature, and even moved from Oregon to California to work on Paul Walker's nonprofit organization.

"Right now, a whole lot of time has not gone by yet," Cody Walker explained in a Thursday phone interview, his voice cracking with emotion. "It still doesn't feel real, because sometimes, working in this industry, making films, he'd be away from his family three, four, six months at a time, you know. And my only interaction would be a phone call. So, I know it's going to take a while."

Cody Walker and brother Caleb Walker, 36 -- both of whom bear a notable resemblance to their late brother -- recently worked on the set of "Fast & Furious 7," which will be released April 10, 2015.

When pressed for details about his involvement with the movie, Cody Walker responded simply, "I can't talk about that."

Cody Walker did briefly discuss his brother's demanding action role in "Brick Mansions," which opens Friday.

"Paul had been training in martial arts for many, many years. Brazilian jujitsu was his choice," Cody Walker said. "Everyone's so used to seeing Paul behind (the wheel of) a car all the time, and not really seeing that part of him."

Cody Walker recently took on the role of brand manager of Reach Out WorldWide (ROWW), a nonprofit disaster-relief organization founded by his brother in 2010.

But clearly, Cody Walker still needs time to deal with his loss and heal.

"Anyone that's ever met Paul ..." he began, then stopped for a second, choking on the words. "He would tell me how jealous of me he was because I still had my anonymity. And he's like, 'I can't just go to the movies. I can't catch the films I want to see. You've still got that, man.' And here he is, talking. It was just so funny to hear that come from him."

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